<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>反馈功能测试</title>
</head>

<body>
    <div>
        <h1>登鹳雀楼</h1>
        <p>唐代：王之涣</p>
        <p>白日依山尽，黄河入海流。</p>
        <p>欲穷千里目，更上一层楼。</p>
    </div>

    <button id="feedback">反馈</button>
    <div>
        <canvas id="csv"></canvas>
    </div>
    <script src="./app.js"></script>
</body>

</html>